Wraparound when using the arrow keys to select search results.

src/AppImageListView.cs

@@ -4,11 +4,22 @@ using Manina.Windows.Forms ;
 
 // --------------------------------------------------------------------
 
-public class AppImageListView
+public class AppImageListView : ImageListView
 {
+
     public class AppImageListViewRenderer : ImageListView.ImageListViewRenderer
     {
         // NOTE: This disables the large preview image in Gallery mode.
         public override void DrawGalleryImage( Graphics g, ImageListViewItem lvi , Image img, Rectangle rc ) {}
     }
+
+    public void setSelection( int selIndex )
+    {
+        // set the selected item
+        for ( int i=0 ; i < Items.Count ; ++i )
+            Items[i].Selected = (i == selIndex) ;
+        Items.FocusedItem = Items[selIndex] ;
+        EnsureVisible( selIndex ) ;
+    }
+
 }

src/MainForm.cs

@@ -23,7 +23,7 @@ public partial class MainForm : Form
     private UserControl mSearchUserControl = new UserControl() ;
     private Label mSearchLabel = new Label() ;
     private TextBox mSearchQuery = new TextBox() ;
-    private ImageListView mSearchResults = new ImageListView() ;
+    private AppImageListView mSearchResults = new AppImageListView() ;
     private WebBrowser mWebBrowser = new WebBrowser() ;
     private Panel mChartImagePanel = new Panel() ;
     private PictureBox mChartImagePictureBox = new PictureBox() ;

src/MainForm.ui.cs

@@ -146,6 +146,18 @@ public partial class MainForm : Form
             // send the keypress to the search results
             // NOTE: We could also respond to Up/Down and scroll the ChartImage vertically,
             // but that would be confusing, given that Left/Right selects a search result.
+            if ( mSearchResults.Items.Count > 1 && mSearchResults.SelectedItems.Count > 0 ) {
+                // check for wrap-around
+                ImageListViewItem selItem = mSearchResults.SelectedItems[0] ;
+                if ( keyCode == Keys.Left && Object.ReferenceEquals( selItem, mSearchResults.Items[0] ) ) {
+                    mSearchResults.setSelection( mSearchResults.Items.Count-1 ) ;
+                    return true ;
+                }
+                if ( keyCode == Keys.Right && Object.ReferenceEquals( selItem, mSearchResults.Items[mSearchResults.Items.Count-1] ) ) {
+                    mSearchResults.setSelection( 0 ) ;
+                    return true ;
+                }
+            }
             mSearchResults.Focus() ;
             mDisableProcessCmdKey = true ;
             SendKeys.SendWait( "{" + keyCode.ToString() + "}" ) ;